RT info:eu-repo/semantics/article T1 Identification of compounds responsible for the anthelmintic effects of chicory (Cichorium intybus) by molecular networking and bio-guided fractionation A1 Valente, Angela H. A1 de Roode, Matthew A1 Ernst, Madeleine A1 Peña Espinoza, Miguel A1 Bornancin, Louis A1 Bonde, Charlotte S. A1 Martínez Valladares, María A1 Ramünke, Sabrina A1 Krücken, Jürgen A1 Simonsen, Henrik T. A1 Thamsborg, Stig M. A1 Williams, Andrew R. A2 Sanidad Animal K1 Sanidad animal K1 Chicory K1 Anthelmintic K1 Parasite K1 Sesquiterpene lactones K1 3109 Ciencias Veterinarias AB [EN] Increasing resistance towards anthelmintic drugs has necessitated the search for alternative treatments for the control of gastrointestinal nematode parasites. Animals fed on chicory (Cichorium intybus L.), a temperate (pasture) crop, have reduced parasite burdens, hence making C. intybus a potentially useful source for novel anthelmintic compounds or a diet-based preventive/therapeutic option. Here, we utilized in vitro bioassays with the parasitic nematode Ascaris suum and molecular networking techniques with five chicory cultivars to identify putative active compounds. Network analysis predicted sesquiterpene lactones (SL) as the most likely group of anthelmintic compounds. Further bioassay-guided fractionation supported these predictions, and isolation of pure compounds demonstrated that the SL 8-deoxylactucin (8-DOL) is the compound most strongly associated with anti-parasitic activity. Furthermore, we showed that 8-DOL acts in a synergistic combination with other SL to exert the anti-parasitic effects. Finally, we established that chicory-derived extracts also showed activity against two ruminant nematodes (Teladorsagia circumcincta and Cooperia oncophora) in in vitro assays. Collectively, our results confirm the anti-parasitic activity of chicory against a range of nematodes, and pave the way for targeted extraction of active compounds or selective breeding of specific cultivars to optimize its future use in human and veterinary medicine PB Elsevier SN 2211-3207 LK https://hdl.handle.net/10612/18882 UL https://hdl.handle.net/10612/18882 NO Valente, A. H., de Roode, M., Ernst, M., Peña-Espinoza, M., Bornancin, L., Bonde, C. S., Martínez-Valladares, M., Ramünke, S., Krücken, J., Simonsen, H. T., Thamsborg, S. M., & Williams, A. R. (2021). Identification of compounds responsible for the anthelmintic effects of chicory (Cichorium intybus) by molecular networking and bio-guided fractionation. International Journal for Parasitology: Drugs and Drug Resistance, 15, 105-114. https://doi.org/10.1016/J.IJPDDR.2021.02.002 DS BULERIA. Repositorio Institucional de la Universidad de León RD 02-jun-2024